Active View

Active View is a technology on YouTube and certain Display Network websites and mobile apps that allows AdWords to determine if your ad is viewable by potential customers.

A display ad is considered viewable when at least 50% of its area is visible for at least 1 second. A video ad is considered viewable when at least 50% of its area is visible while the video is playing for at least 2 seconds.

Note: For large display ads of 242,500 pixels or more, the ad is counted as viewable when at least 30% of it’s area is visible for at least 1 second.

Active View-enabled websites allow you to use a viewable CPM bid for display campaigns, to set a different bid amount for impressions on sites where the ad appears in a viewable position.

You might see this term in certain column names for your video and Display Network reports, such as "Measurable cost," "Measurable impr.," or "Viewable rate."

Active View metrics are compliant with the industry standards for the viewability of online ads.

Keep in mind: Active View can tell you when ads are viewable, but it can’t guarantee that a user is looking at the screen at that time.